serendipity
accidental good fortune; discovering good things without looking for them
servile
submissive and subservient; like a servent
singular
unique; superior; exceptional; strange
sinister
evil, wicked; foreshadowing evil, trouble, or wickedness
slander
to speak badly about someone publicly; to defame; to spread malicious rumour
sloth
laziness; sluggishness
sobriety
the state of being sober; seriousness
solicitous
eager and attentive, often to the point of hovering; anxiously caring or attentive
scrutinize
to examine very carefully
secular
having nothing to do with religion or spiritual concerns
sedition
treason, incitement of public disorder or rebellion
segregate
to separate
sensory
having to do with the senses or sensation
sentient
able to perceive by the senses; conscious
sequester
to set or keep apart